1 /*-
2 * Copyright (c) 1994-1998 Mark Brinicombe.
3 * Copyright (c) 1994 Brini.
4 * All rights reserved.
5 *
6 * This code is derived from software written for Brini by Mark Brinicombe
7 *
8 * Redistribution and use in source and binary forms, with or without
9 * modification, are permitted provided that the following conditions
10 * are met:
11 * 1. Redistributions of source code must retain the above copyright
12 * notice, this list of conditions and the following disclaimer.
13 * 2. Redistributions in binary form must reproduce the above copyright
14 * notice, this list of conditions and the following disclaimer in the
15 * documentation and/or other materials provided with the distribution.
16 * 3. All advertising materials mentioning features or use of this software
17 * must display the following acknowledgement:
18 * This product includes software developed by Brini.
19 * 4. The name of the company nor the name of the author may be used to
20 * endorse or promote products derived from this software without specific
21 * prior written permission.
22 *
23 * THIS SOFTWARE IS PROVIDED BY BRINI ``AS IS'' AND ANY EXPRESS OR IMPLIED
24 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
25 * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
26 * IN NO EVENT SHALL BRINI OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
27 * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
28 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
29 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
30 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
31 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
32 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
33 * SUCH DAMAGE.
34 *
35 * from: FreeBSD: //depot/projects/arm/src/sys/arm/at91/kb920x_machdep.c, rev 45
36 */
37
38 #include "opt_platform.h"
39
40 #include <sys/cdefs.h>
41 __FBSDID("$FreeBSD: releng/10.0/sys/arm/ti/ti_machdep.c 251586 2013-06-09 22:51:11Z cognet $");
42
43 #define _ARM32_BUS_DMA_PRIVATE
44 #include <sys/param.h>
45 #include <sys/systm.h>
46 #include <sys/bus.h>
47
48 #include <vm/vm.h>
49 #include <vm/pmap.h>
50
51 #include <machine/bus.h>
52 #include <machine/frame.h> /* For trapframe_t, used in <machine/machdep.h> */
53 #include <machine/machdep.h>
54 #include <machine/pmap.h>
55
56 #include <arm/ti/omap4/omap4_reg.h>
57
58 /* Start of address space used for bootstrap map */
59 #define DEVMAP_BOOTSTRAP_MAP_START 0xF0000000
60
61 void (*ti_cpu_reset)(void);
62
63 vm_offset_t
64 initarm_lastaddr(void)
65 {
66
67 ti_cpu_reset = NULL;
68 return (DEVMAP_BOOTSTRAP_MAP_START - ARM_NOCACHE_KVA_SIZE);
69 }
70
71 void
72 initarm_gpio_init(void)
73 {
74 }
75
76 void
77 initarm_late_init(void)
78 {
79 }
80
81 #define FDT_DEVMAP_MAX (2) // FIXME
82 static struct pmap_devmap fdt_devmap[FDT_DEVMAP_MAX] = {
83 { 0, 0, 0, 0, 0, }
84 };
85
86
87 /*
88 * Construct pmap_devmap[] with DT-derived config data.
89 */
90 int
91 platform_devmap_init(void)
92 {
93 int i = 0;
94 #if defined(SOC_OMAP4)
95 fdt_devmap[i].pd_va = 0xF8000000;
96 fdt_devmap[i].pd_pa = 0x48000000;
97 fdt_devmap[i].pd_size = 0x1000000;
98 fdt_devmap[i].pd_prot = VM_PROT_READ | VM_PROT_WRITE;
99 fdt_devmap[i].pd_cache = PTE_DEVICE;
100 i++;
101 #elif defined(SOC_TI_AM335X)
102 fdt_devmap[i].pd_va = 0xF4C00000;
103 fdt_devmap[i].pd_pa = 0x44C00000; /* L4_WKUP */
104 fdt_devmap[i].pd_size = 0x400000; /* 4 MB */
105 fdt_devmap[i].pd_prot = VM_PROT_READ | VM_PROT_WRITE;
106 fdt_devmap[i].pd_cache = PTE_DEVICE;
107 i++;
108 #else
109 #error "Unknown SoC"
110 #endif
111
112 pmap_devmap_bootstrap_table = &fdt_devmap[0];
113 return (0);
114 }
115
116 struct arm32_dma_range *
117 bus_dma_get_range(void)
118 {
119
120 return (NULL);
121 }
122
123 int
124 bus_dma_get_range_nb(void)
125 {
126
127 return (0);
128 }
129
130 void
131 cpu_reset()
132 {
133 if (ti_cpu_reset)
134 (*ti_cpu_reset)();
135 else
136 printf("no cpu_reset implementation\n");
137 printf("Reset failed!\n");
138 while (1);
139 }
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